Hydraulic accumulating power station with underground location of lower pool and combined method of lower pool tunnelling

SUBSTANCE: hydraulic accumulating power station comprises a pool located on earth surface, a water intake facility, a vertical discharge water duct, a communication shaft, an aeration shaft, an inclined shaft of power delivery, a station unit with hydraulic units, a lower pool with main chambers and an inclined transport tunnel. The lower pool additionally contains short tunnels, connecting galleries, discharge connecting water ducts and a distributing chamber. Main chambers of the lower pool are made in the form of helically arranged tunnels in plan. The station unit with hydraulic units is placed in the centre of spirals of the lower pool. Hydraulic units of the station unit by means of suction pipes and short tunnels are connected with the distributing chamber, which by means of discharge connecting water ducts arranged radially relative to it, is connected with the main chambers of the lower pool. The lower pool is tunnelled by a combined method consisting in tunnelling of the main inclined transport tunnel from the surface to underground facilities with the help of a tunnelling mechanised complex and arrangement of main chambers of the lower pool. At the same time in parallel to the main inclined tunnel an additional transport tunnel is arranged, and then the lower pool is arranged, which is a continuation of transport tunnels. The lower pool is arranged in two stages: at the first stage a pilot mine is tunnelled with an open tunnelling mechanised complex, and at the second stage, using blast-hole drilling, it is finalised to design contour. Simultaneously with tunnelling of the main chambers of the lower pool they arrange a station unit with hydraulic units, which is located in the centre of spirals of the lower pool.

EFFECT: invention makes it possible to solve a problem of placement of high-discharge hydraulic accumulating power plants in plain territories, by arrangement of a lower pool and a discharge station unit under earth at depths from 300 m to 2000 m, and to optimise works performance and to mechanise tunnelling of underground mines to the maximum, through joint usage of open production tunnelling mechanised complexes and up-to-date equipment complex for performance of blast-hole drilling.

4 dwg

The invention relates to the field of hydraulic engineering construction, in particular to the construction of the high-pressure pump storage power plants with underground location of the bottom of the pool.

High-pressure pumped from the underground pool is an environmentally friendly, highly manoeuvrable electric object capable of providing a comprehensive system of service: General primary, automatic secondary and tertiary regulation power, consumer-controlled load and synchronous compensator, prevention of emergency situations, the output of the power systems of accidents and other PSP differs from other energy sources your accommodation right in the centre of consumption, which allows with minimal loss of power to respond quickly to changing electrical loads. Moreover accommodation is pumped from the underground location of the lower basin on the plains, where topographic conditions impossible to build high-PSPP and where, as a rule, are major consumers of electricity.

The closest in technical essence and the achieved technical result is a hydroelectric power plant with an underground location of the bottom of the pool that contains the pool, located on the earth's surface, water is bornoe construction
vertical penstock, mine communication, aeration shaft, an inclined shaft of the power distribution, station node units, the bottom of the pool with the main chambers and inclined transport tunnel and the method of penetration of the lower basin includes the driving of the main inclined transport tunnel from the surface to underground structures using channelerotica mechanized complex and the construction of the main chambers of the lower basin. (EN 2005128637, CL E02B 9/00, published. 20.03.2007,).

Disadvantages technical solution is that the issuance of the breed is conducted either by pipeline or by using electrified rail transport over the entire length of the bottom of the pool, which substantially extends the length of the path of the issuance of waste rock. Also in this arrangement, provided that each unit is connected with its isolated sections of the spiral, which necessitates the arrangement of the individual aeration mine for each Autonomous sections of the spiral. With this design substantially elongate draft tube units, and also there may be significant fluctuations in the waters of the lower pool, which increases the risks of collapse of the arch of the cameras.

The technical result from the use of the invention is that it allows to solve the problem of placing the high-pressure GaAsN the plains, by placing the bottom of the basin and the discharge station site under the ground at depths from 300 m to 2000 m,
and also allows you to optimize the work and as much as possible to mechanize the driving of underground workings by sharing open productive channelerotica mechanized complexes (grippernye TBM) and modern complex equipment to perform blasting.

This technical result is achieved by the fact that the pumped storage plant with underground location of the bottom of the pool that contains the pool, located on the earth's surface, water intake structure, vertical penstock, mine communication, aeration shaft, an inclined shaft of the power distribution, station node units, the bottom of the pool with the main chambers and inclined transport tunnel, the bottom of the pool has an additional short tunnels, connecting galleries, pressure connecting conduits and distribution chamber, the main chamber the bottom of the pool is made in the form of a spiral tunnels located in the plan, and the station site with the units placed in the center of the spirals of the bottom of the pool and the hydroelectric station node through the suction pipe and short tunnels connected to a distribution chamber, which pressure through the connecting conduits placed radially relative to what it
connected with the main chambers of the lower basin, and a combined method of penetration of the lower basin, including the sinking of the main inclined transport tunnel from the surface to underground structures using channelerotica mechanized complex and the construction of the main chambers of the lower basin, in parallel with the main inclined tunnel are additional transport tunnel and then carry out the construction of the lower basin, which is a continuation of the tunnels, the construction of the lower basin are in two stages: the first stage of pilot production open channelerotica mechanized complex, and at the second stage are revision to the design contour of the drilling and blasting method, and simultaneously with the driving of the main chambers of the lower pool build station site by generating units that are located in the center of the spirals of the bottom of the pool.

The invention is illustrated by drawings, where figure 1 shows a plan of the underground complex structures, figure 2 - cross section of the bottom of the pool along b-B in figure 3 - Transverse section of the PSP with the underground bottom pool a-a and figure 4 - Section of the station site along a-A.

Part of the PSP with the underground bottom pool, we construct a combined method according to the invention includes: top the pool 1,
located on the earth's surface, the recipient 2, penstock 3, station node with 4 units, distributing chamber 5, the pressure connecting conduits 6, the main camera of the lower basin 7, the inclined shaft of the power distribution 8, the main inclined transport tunnel 9, the communication shaft 10, aeration shaft 11, a short tunnel 12, the connecting gallery 13.

The main camera of the lower basin 7 is made in the form of a spiral tunnels located in the plan. Spiral tunnels are a continuation of the main inclined transport tunnel 9 and the inclined shaft of the power distribution 8 used as the second inclined transport tunnel, which provide access to the depth of the main chambers of the lower basin. Station site with hydro unit 4 is located in the centre of the spirals of the lower basin. With this arrangement, the station site provides the most favorable hydraulic regime in the downstream, as it provided the emptying and filling of the main chambers of the lower basin 7 sectors. The hydroelectric station node 4 through the suction pipe and short tunnels 12 is connected to a distribution chamber 5, which serves for the distribution of fluids and reduce fluctuations in water levels in the main chambers of the lower basin 7. Raspredelitel the I chamber 5 by means of radial pressure of the connecting conduits 6 are connected with the main chambers of the lower basin 7.
Pressure connecting conduits are radially from the distribution chamber 5 to ensure the discharge of water by sector of the main chambers of the lower basin 7. The main camera of the lower basin 7 are connected to each other by means of a connecting galleries 13. The connecting gallery 13 and the pressure connecting conduits 6 allow to redistribute the issuance of the breed in the construction period, thereby reducing the length of the issuance of the breed through the pipeline, and also to increase the number of faces. Aeration shaft 11, serves to return and air supply when filling and emptying the bottom of the pool. As the main camera of the lower basin are in free-flow mode, you only need one aeration mine. Communication the shaft 10 is required for delivery of personnel and small cargo, ventilation and aeration and gaskets communication links.

Described PSP works as follows. In the turbine mode, water from the upper basin 1 through a water body 2 is fed to the pressure conduit 3, through which water is supplied to the hydroelectric station node 4. Using hydroelectric energy of the flow is converted into electricity and is thrown into the grid through an inclined shaft of the power distribution 8. Having an aggregate area, water flows through the suction pipe and short tunnels 12 in the distributor Cam is ru 5,
where extinguished major fluctuations. Through pressure connecting conduits 6 water enters the main chamber of the lower basin 7 sectors, where the used amount of water is accumulated. The main camera of the lower basin 7 are connected to each other by means of a connecting galleries 13. In pumping water from the main chambers of the lower basin 7 by means of hydraulic cylinders 4 is pumped into the upper pool 1, going way back. Thus, the main chamber of the lower basin 7 are emptied and again ready for a new cycle of generation.

The method of construction of the lower basin hydroelectric power station is as follows.

The lower pool pumped storage plant construct a combined method of penetration, namely, the driving of the main chambers of the lower basin is carried out in two stages: the first stage mechanized create pilot production using open channelerotica mechanical complex (grippernye TBM), and the second stage are revision to the design contour of the drilling and blasting method in solid rocks. The tunnels are in the form of spirally arranged openings in the plan. Spirals are a continuation of the main inclined transport tunnel 9 and the inclined shaft of the power distribution 8, which is used as the second nuklon the th transport tunnel.
Tunnels 8 and 9 provide access to the depth of the main chambers of the lower basin. Inclined transport tunnels, made in the form of a spiral, make the approach to develop vertical shafts - pressure conduit 3, the communication shaft 10, aeration shaft 11, which will accelerate the penetration of these mines.

The main inclined transport tunnel 9 from the surface to the underground facilities are using channelerotica mechanized complex. The tunnel are spiral in plan and in cross section has the shape of a circle. The slope of the tunnel, pick up the condition of technical features of the vehicles that provide removal of rocks and equipment to the surface from a depth - cars, conveyors, rail transport. The diameter of the cross section can vary from 6 m to 19 m, and is selected depending on the conditions of transportation of heavy, oversized equipment and geological conditions - increasing the diameter TBM increase the risks of wood thrown out and caving in the tunnel, and economic considerations - consideration of additional fastening and the possible use of TBM in the future, when the sinking of the main chambers of the lower basin. Transport tunnel can take place both in soft and rocky soil, and the lower pool and station site are in rugged rocky soil. One is temporarily with the main inclined transport tunnel are the second inclined transport tunnel a smaller cross-section (diameter of 6 m to 9 m) in parallel with the main in order to accelerate the construction of the bottom of the pool
and station site and improve conditions and safety at work and during operation at great depths. The second inclined transport tunnel provides a reliable transport service construction and operation of pumped-storage power plants in General, as well as later in this tunnel arrange an inclined shaft of the power distribution 8 that allows you to refuse the construction of additional vertical shaft.

After the construction of the tunnels immediately begin the construction of the lower basin, which is a continuation of the transport tunnels. The development of the lower basin are in two stages. At the first stage grippernye TBM circular cross-section at the same time lead the development of the upper tier of the main chambers of the lower basin. The diameter of the TBM shall be chosen in the range from 6 m to 19 m, depending on the effective capacity of the lower basin, geological conditions and economic feasibility, namely:

- increasing the diameter TBM decreases the length of the bottom of the basin and, on the contrary, when reducing the diameter increases, the length of the bottom of the pool;

- increasing the diameter TBM increases the risk of cave-ins and wood thrown, which requires additional costs on the mount. With decreasing diameter, on the contrary, the risk of wood thrown and falling decreases;

- you want techno-economic comparison for the distribution of the optimal diameter TBM,
on the basis of the cost of securing and increasing the length of the bottom of the pool.

The radius of the spirals of the lower pool is determined from the condition of the issuance of waste rock and capabilities TBM, i.e. a possible turning radius TBM and possible turning radius conveyor belt for reliable and trouble-free operation. Choice of mounting design code is determined from geological conditions and economic feasibility, i.e. when drilling the bottom of the pool in intact rocky soil requires a minimum lining in the form of anchors and spraying concrete on the grid, and in a weak fractured rocks requires an additional lining of the chambers of the lower basin that leads to higher prices. The resulting sinking workings are the upper tier of the main chambers of the bottom of the pool.

Then in the second stage performs the finalization of these workings to the design contour of the drilling and blasting method (method ledge produce loosening rocks with contour blowing). This method of construction of the main chambers of the lower basin 7 allows you to increase the size of the useful cross-section from 1.5 to 3 times, thereby reducing the overall length of the workings of the main chambers of the lower basin. This approach to the development of the main chambers of the bottom of the pool allows you to choose for sinking grippernye TBM relatively small diameters (from 6 m to 10 m), odesew the Yaya project and reducing the likelihood of collapse of the arch cameras with sinking grippernye TBM large diameter (from 10 m to 19 m).
Moreover in this case, the improved hydraulic mode when emptying the main chambers of the lower basin (PSPP is running in pump mode) by executing their bottom with a slope. The main camera of the lower basin are in free-flow mode.

As the shape and dimensions of the cross section of the main chambers of the lower basin are determined from the conditions of the location of the bottom of the basin: with increasing depth, the vertical stress in the rock mass increase, and the horizontal change is not linear. It is necessary to optimize the form of development, which in turn also depends on the technology penetrations and mounting hardware.

Section parameters (size and shape) of manufacture and design lining the main chambers of the lower basin in the rock mass is determined on the basis of the calculations. The calculation involves the determination of the stress-strain state (SSS) of the rock mass at the location of these underground workings. Calculation of VAT rock massif is performed by the finite element method. In this method, for the given parameters generate adjacent the array is broken down into separate elements (finite elements) in which with the help of modern computer programs determine the voltage and displacement.

Proceeding from the above, when combined method penetrations who is implemented to find the optimal configuration section of the main chambers of the lower basin taking into account the stress-strain state of rock massif at depths from 300 m to 2000 m,
technology penetrations and mounting hardware.

During the excavation of the lower basin also are sinking radial pressure of the connecting conduits 6 and the distribution chamber 5. Pressure connecting conduits 6 are bred in the radial direction from the distribution chamber 5 to the main chambers of the lower basin 7, thereby to provide a favorable hydraulic regime of the power station. When this pressure connecting conduits during the development of the main chambers of the lower basin mechanized and drilling and blasting method are auxiliary transport workings for removal of waste rock. This allows to increase the number of faces at penetration and thus reduce the construction period. Distributing chamber 5 serves for the distribution of fluids and reduce fluctuations in water levels in the main chambers of the lower basin, thus distributing chamber 5 acts as a surge tank.

Simultaneously with the driving of the main chambers of the lower basin 7 construct the station site with units 4, which are located in the center of the spirals of the lower basin. With this arrangement, the station site provides the most favorable hydraulic regime in the downstream, as it provided the emptying and filling of the main chambers of the lower bass is in by sector.
Just build the suction pipe hydroelectric turbine hall, power station, short tunnels 12, which connect with the distribution chamber 5, the pressure conduit 3 and aeration shaft 11, which serves to return and air supply when filling and emptying the bottom of the pool. Because the lower pool is in the pressure mode, you only need one aeration mine. Communication the shaft 10, is required in the operational period for the delivery of personnel and small cargo, ventilation and aeration and gaskets communication is built simultaneously with the main structures of the underground complex.

The application of these decisions on the arrangement of the lower basin in comparison with all known configurations of PSPP and methods of their construction provide:

- ability to reduce construction time due to the continuous maintenance of underground work with the joint use of open high-performance channelerotica mechanized complexes and modern machinery to perform drilling and blasting operations;

- ability to use grippernye TBM small diameters (from 6 m to 10 m);

- the choice of the optimal configuration section of the main chambers of the lower basin from the point of view of improving the hydraulic regime in the downstream by the mouth of the STS required slope of the bottom and the stress-strain state at depths from 300 m to 2000 m

1. Pumped storage power plant with an underground location of the bottom of the pool that contains the pool, located on the earth's surface, water intake structure, vertical penstock, mine communication, aeration shaft, an inclined shaft of the power distribution, station node units, the bottom of the pool with the main chambers and inclined transport tunnel, characterized in that the lower pool has an additional short tunnels, connecting galleries, pressure connecting conduits and distribution chamber, the main chamber the bottom of the pool is made in the form of a spiral tunnels located in the plan, and the station site with the units placed in the center of the spirals of the lower basin, and the hydroelectric station node through the suction pipe and short tunnels connected to a distribution chamber, which pressure through the connecting conduits placed radially in relation to it, is connected with the main camera the bottom of the pool.

2. A combined method of penetration of the lower basin, including the sinking of the main inclined transport tunnel from the surface to underground structures using channelerotica mechanized complex and the construction of the main chambers of the lower basin, characterized in that parallel the main part inclined tunnel are additional transport tunnel
and then carry out the construction of the lower basin, which is a continuation of the tunnels, the construction of the lower basin are in two stages: the first stage of pilot production open channelerotica mechanized complex, and at the second stage are revision to the design contour of the drilling and blasting method, and simultaneously with the driving of the main chambers of the lower basin construct the station site by generating units that are located in the center of the spirals of the lower basin.

SUBSTANCE: method for construction and support of mines under complicated mining and geological conditions includes formation of an unloading cavity in front of a bottomhole with irreducible advancing, introduction of two rows of pneumatic balloons with a shield into the unloading cavity, lifting of the shield to the level of the mine roof, creation of a thrust between the cavity roof and pneumatic balloons by means of compressed air supply into pneumatic balloons, extraction of rock under the shield by the pitch of permanent support frames installation, and installation of stands and the beam of the permanent support under the shield. At the same time an additional unloading cavity is developed in the mine sides, and installation of the permanent support beam is carried out between rows of pneumatic balloons from the cavity of the mine arranged in the sides. Afterwards the permanent support stands under the shield are fixed to the support beams, the thrust is removed from the pneumatic balloons of the first row by means of exhaust of compressed air, and pneumatic balloons are extracted into the fixed part of the mine. Rock under the shield is removed by the pitch of permanent support frames installation, the thrust is removed from the pneumatic balloons of the second row by means of exhaust of compressed air, and pneumatic balloons are extracted into the fixed part of the mine. Then the unloading cavity is constructed to the initial depth, and operations are repeated.

EFFECT: higher efficiency and safety of construction and support of developing entries under complicated mining and geological conditions.

SUBSTANCE: hydroelectric plant includes a housing made in the form of a vertical cylindrical chamber and a cylinder installed inside it at some distance, which form a composite channel, a compressor station interconnected via an air pipeline to a receiving chamber, a hydrojet turbine with the main generator, which is installed at the outlet of the turbine pipeline located in upper part of the receiving chamber, working fluid storage and level sensors. The plant is equipped with Pelton-type turbines with generators, the first and the second elevated tanks, additional level sensors, one of which is located in the first elevated tank, and the second one is located in the second elevated tank, and an air tank interconnected via an additional air pipeline with a check valve to the first elevated tank. Elevated tanks are installed inside upper part of the cylinder. The first elevated tank has the shape of a funnel, which is connected in the middle to the turbine pipeline. The second elevated tank is put on the first elevated tank and equipped with pressure hoses located in the first tank so that their outlets are located above the funnel opening of the first elevated tank. Pelton-type turbines are installed opposite nozzles of the hydrojet turbine along the perimeter of the receiving chamber. The receiving channel connects the receiving chamber to the second elevated tank. The storage is located in upper part of the housing. On pressure hoses and at the inlet of the turbine pipeline there installed are valves, and on some shafts with turbines there installed are flywheels.

EFFECT: lower consumption of power required for water return to water storage reservoir.

SUBSTANCE: hydroelectric power plant includes a channel connected to a water reservoir initiating a dynamic flow and orthogonal turbines located inside the channel. The channel represents a pipe consisting of connecting links and provided with the turbines equally spaced throughout the pipe length. Turbines are made in the form of tubular modules with a drive shaft outlet and have the possibility of installing the modules between the connecting links of the pipe. In addition, annular elements of aerodynamic profile are fixed in modules.

EFFECT: higher efficiency of a hydroelectric power plant, lower structural complexity and metal consumption of the device, improved manufacturability, installation and operation and uniform distribution of loads between turbines.

SUBSTANCE: device comprises a body made in the form of a semi-cylinder and a well. The body is separated by perforated partitions of semi-circular shape with formation of filtering sections between them. With external ends the partitions are connected to a coastal wall, in the middle part of which there is a vertical cylindrical well. The cover is installed on top of sections. Loading baskets are made of a geosynthetic material, have perforated walls that form cells between each other, where a foam polystyrene charge is located. Hinged loops with eyes are fixed on the upper parts of the baskets.

EFFECT: improved efficiency of device operation due to increased extent of water treatment and improved operation conditions.

SUBSTANCE: filter comprises a cylindrical body, the axis of which is arranged horizontally and in parallel to a flow of treated liquid, representing a shell, filtering elements and a washing accessory. Filtering elements are arranged of tubular form with the outer surface of filtering, represent slot grids, arranged in the form of a cylindrical spiral from a high-precision profile of a V-shaped form, and are fixed at two sides of the body. The washing accessory represents a T-shaped bracket, with two tubular frames installed on it with the possibility of rotation in bearing assemblies, on the sections of which arranged in parallel to filtering elements there is perforation.

EFFECT: increased reliability of device operation, simplified layout of a water-intake unit and higher efficiency of its cleaning from sludge ice and debris, and provides for protection of young fishes against ingress into a water-intake.

SUBSTANCE: filter comprises a cylindrical body, the axis of which is arranged horizontally and in parallel to a flow of cleaned fluid, representing a shell, filtering elements and a distribution device. Inside the body there is a header, with perforated pipes welded to it. Outside the body along the outer perimetre of the filter below the filtering element arranged between the body and the shell with a deflector, at the side of cleaned fluid flow movement there is a wedge-shaped perforated header installed. There is a vibrator installed on the body shell. Filtering elements are arranged of tubular shape with the external filtering surface, representing slot grates arranged in the form of a cylindrical spiral from a high-precision V-shaped bar with an anti-adhesion biologically inert coating and are fixed at both sides of the body.

EFFECT: higher reliability of device operation, efficiency of its cleaning from sludge ice and debris, and provides for protection of young fishes against getting into a water intake.

SUBSTANCE: method includes forwarding a larger part of Volga run-off from the Zhigulevskoe storage pond bypassing existing hydraulic structures of the Zhigulevskaya HPP along the valley of the Usa River for its supply into water-passage tunnels under a neck between water areas of the Zhigulevskoe and Saratovskoe storage ponds, designed to supply water onto blades of hydraulic turbines of a new hydraulic power plant in the area of the settlement Perevoloki of Samara region, and also for idle discharge of water into the water area of the Saratovskoe storage pond.

EFFECT: invention makes it possible to increase the extent of protection of structures arranged in zones of possible breakthrough of water masses.

SUBSTANCE: device includes perforated cylindrical pipe, streamlined head, cleaning device in the form of two brushes connected to a turbine; besides, one of the above brushes is installed outside a strainer, and the other one is installed inside it with possibility of being rolled over it. The device is also equipped with garbage protecting device in the form of a dome-shaped housing with vertical turnback plates radially installed along the generatrix of its surface from the top with decreasing height. Turbine is propeller-type. Turbine is installed in additional cylindrical connection pipe with possibility of being rotated about its axis and attached to dome-shaped housing with possibility of being rotated vertically about outlet pipeline axis.

EFFECT: use of the invention will allow improving water intake operating reliability due to reducing the impact of floating garbage contained in water.

SUBSTANCE: hydroelectric power plant includes water intake located outside bed of river, main capacity, pressure waterway and waterway of turbines. Along the whole bed of river there arranged is n regulating water reservoirs for water collection, each of which is equipped with a filling channel connected to the river bed and made in upper place as to level and dam with the height of up to upper level, which is made in lower place as to level. Discharge pipeline interconnected with river bed and equipped with a gate valve is installed at lower point of each regulating water reservoir. The main capacity is made in the form of the main water reservoir located below regulating water reservoirs in the section with high level difference and equipped with filling channel connected to the river bed, and dam with height of up to upper level, which are made in upper and lower places respectively as to water level. Pressure waterway is installed downstream as to level of the main water reservoir and made in the form of pressure pipelines with length of not less than 12-15 km depending on river water level difference in order to obtain the required head, which leave the main water reservoir. Pressure pipelines consist of winter pressure pipeline for minimum water flow rate and n summer pressure pipelines for maximum water flow rate. Pressure pipelines are connected to turbine waterway. Hydroelectric power plant also includes compensation water body located at the head level of turbine waterway, which is connected to waterway of turbines and equipped with pump group.

SUBSTANCE: invention refers to hydroelectric power plants. Hydroelectric power plant includes runner 2 fully submerged into water and installed so that it can be rotated, housing with half-round groove, which encloses runner 2 on one side. The other side of runner 2 is located in water stream. Runner 2 is provided with horizontal rotation axis. Housing is arranged at the river bottom and hinged on the ends of arms the other ends of which are hinged to the piles mounted into the river bottom. External surface of the housing is concentric to the groove, equipped with radially located soil washing-out nozzles, as well as cutters. Hydroelectric power plant is provided with a drive to perform backward swinging movement of the housing relative to the arms.

EFFECT: simplifying the manufacturing technology and reducing the cost of hydroelectric power plant.

SUBSTANCE: intake works fish-protection structure is related to the field of hydroengineering facilities and is used to prevent ingress of roe, larvae, young fish and full-grown fish into the intake works. The structure comprises a water-intake pipe 15, an inlet flow-forming head wall 12, a fish-receiving pod 5, a fish-diverting nozzle 9, an output head wall 11 of the fish-diverting nozzle 9, a curvilinear U-shaped water-receiving chamber 1, chambers-shelters for fish 7. At the inlet of the water-receiving chamber 1 there are coarse garbage-retaining grates 2 installed. Between the curvilinear convex 3 and concave 4 walls of the water-receiving chamber 1 there is the fish-receiving pod 5 installed. The fish-receiving pod 5 is arranged in the form of a vertical curvilinear wall with holes for passage of a part of a fish flow 6 with fish into the chamber-shelter 7. In the centre of the curvilinear concave wall 4 of the water-receiving chamber 1 there is a receiving window arranged with guide blades 8 of the fish-diverting nozzle 9. The fish-diverting nozzle 9 is arranged in the form of a box with water discharge with fish along a pipe 10 towards the outlet head wall 11. The outlet head wall 11 is arranged outside the limits of the water intake action area. The inlet flow-forming head wall 12 is inserted into the curvilinear convex wall 3 of the water-receiving chamber 1. The inlet flow-forming head wall 12 is arranged in the form of radial vertical blades 13. In the space between vertical blades 13 there are inclined guide partitions 14. Partitions 14 forward the flow without fish into a vertical riser of a water intake pipe 15. The pitch 16 between guide partitions 14 reduces top down. At the ends of radial vertical blades 13 there are flexible canopies 17 fixed to divert fish to the fish-receiving pod 5.

EFFECT: higher efficiency of fish diversion back into an intake works.

SUBSTANCE: method involves supplying water stream free of young fish in waterway; forming hydraulic screen near water-intake influence area to separate above area from main stream of water-intake structure; forming whirlpool area near water-intake shore edge. Water stream is formed upstream water-intake structure. Water for users is taken from whirlpool area formed by inner water spray boundary and shore edge. Facility includes water-intake structure arranged at shore line, water-intake pipes connected with pump, stream former and means for water stream creation in waterway. Means for water stream creation is made as channel operating in non-pressure regime and having outlet part arranged upstream water inlet. Marks formed on channel bottom and waterway bottom coincide one with another. Stream former is located downstream water intake and directed in downstream direction.

EFFECT: creating of hydraulic conditions to protect young fish from ingress in water-intake structure.

SUBSTANCE: invention relates to hydraulic works designed for preventing getting of young fish into diversion facilities. Proposed device contains fish retaining shield made in form of hollow guides arranged in tiers across water channels in depth with displacement of each upper tier towards diversion channel. It contains also perforated air duct located on bottom of water channel directly before said shield and train-and-fish trough arranged in upper part of channel in parallel with air duct and connected with outlet and device to let out young fish arranged in height of fish retaining shield. Guides of U-shaped are installed at angle to current of intake channel, their planes are perforated and open end part is pointed to bottom of water channel. Young fish let out device is made in form of perforated shields installed side guides for vertical displacement by drive in height of fish retaining shield relative to additional guides made from side of bank edges of intake channel. Perforation holes of shields and u-shaped guides do not coincide in light.

EFFECT: possibility of retaining and bringing young fish out of limits of influence of diversion facility.

SUBSTANCE: invention relates to hydraulic works designed to protect young fish from getting into diversion facilities. Proposed device contains fish retaining shield installed in channel and made in form of perforated pipelines arranged in horizontal tiers along entire depth of channel and connected with source of working medium, perforated air duct placed on bottom of channel directly before shield and trash-and-fish trough arranged in upper part of shield parallel to perforated pipeline and air duct which is connected with fish outlet. Perforated pipelines are furnished with ejectors and fish gathering troughs. Ejectors are connected with pressure line of pump and are placed inside perforated pipelines and in communication with fish gathering troughs through perforation holes made in horizontal plane along both sides of pipelines, fish gathering troughs being rigidly fastened opposite to perforation holes. Inner space of fish gathering troughs is provided with longitudinal horizontal partitions dividing the troughs into separate fish intake parts. Surfaces of fish gathering troughs pointed to surface and to bottom of water channel are made perforated. Cross partitions found inside separate fish intake parts form fish intake channels. Initial part of fish outlet is made with fish intake pocket over entire depth of water channel. End face parts of perforated pipelines pointed to side of fish outlet communicate with inner space of pocket.

EFFECT: provision of retaining and removing of young fish over entire depth of water channel.

SUBSTANCE: invention relates to hydraulic works designed to protect young fish from getting into diversion facilities. Proposed device contains fish retaining shield installed in water channel in tiers in depth of water channel with displacement of each higher tier to side of water intake channel, perforated air duct made in form of guides installed across water channel before shield on bottom of water channel, and trash-and-fish trough connected with fish outlet and arranged in upper part of shield parallel to air duct. Guides are made in form of flat plates rigidly installed at angle to flow in intake channel. Each plate is provided with horizontal axle in its upper part on which additional plate is secured from side of water intake channel for turning. Lower end face end of additional plate is provided with radial baffle whose surface has perforation holes. End face part of additional plates is provided with sector stopper from side of fish outlet, horizontal axles of plates being connected with drive. Additional plates can be perforated.

EFFECT: provision of retaining and bringing young fish out of the limits of influence of diversion facility.

SUBSTANCE: invention is designed to draw off young fish from zone of influence of water diversion front. Method comes to ejecting young fish into intake part of ejecting plant from section of pond with higher concentration of young fish, creating active ejecting working stream in mixing chamber by entraining volume of water containing young fish into stream created by central ejecting hydraulic jet and further conveyance of water-fish mixture along pressure conduit into fish outlet. At the last stage of conveyance young fish is transported into fish outlet under no pressure conditions by forming hydraulic jet angle to trough of fish outlet, young fish being dropped on surface of fish outlet stream. Invention provides effective conditions for drawing off young fish into fish outlet and reduces damage to young fish. If working ejecting stream is preliminarily saturated with atmospheric air, its outer borders are saturated with air in form of finest microbubbles which form boundary layer ("air cushion") at contact with which young fish do not suffer from discomfort and easily take up hydrodynamic pressure built in mixing chamber. Moreover, provision of boundary layer saturated with microbubbles of air makes it possible to considerably reduce value of friction coupling of two streams, main getting from working nozzle and ejecting, containing young fish.

EFFECT: provision of good conditions for letting out young fish into fish outlet, reduced damage of young fish.

SUBSTANCE: invention relates to devices protecting young fish and preventing their getting into diversion facility. Proposed fish protective facility includes filtering water-separating dam made in form of vertical water-separating wall arranged along water intake channel and separating inlet part of channel from water conduit, device for preliminary drawing off young fish made in form of vertical rod installed for rotation by drive arranged before water-separating wall from its end face part pointed opposite to water flow. Rod is displaced relative to water-separating wall towards water intake channel. Device for preliminary drawing off young fish is furnished with additional means to increase fish draw-off effect, said means being made in from of flat round disks rigidly secured in height of rod coaxially with rod. Disks are installed parallel to each other forming slot water intake channels. End face part of water-separating wall adjoining the rod is provided with slots located opposite to planes of arrangement of disks. Disks are installed for free passing relative to slots. Invention provides higher efficiency of drawing off young fish out limits of zone of influence of diversion facility owing to provision of disks considerably increasing area of contact with surrounding medium and creating powerful circulation flow providing diversion of young fish and trash entrained by water behind outer surface of dam.

EFFECT: provision of effective conditions for drawing off young fish out of limits of zone of influence of diversion facility.

SUBSTANCE: invention relates to fish protective facilities used in diversion facilities. Proposed fish protective facility includes vertical gauze shield installed in inlet part of water intake channel at angle to its longitudinal axis, fish outlet arranged in place of mating of shield with side of channel, and device for creating whirlpool current for washing the shield containing jet guide member and made in form of chambers adjoining outer surface of shield and forming water intake holes over entire depth of water intake channel. Chambers are made cylindrical being formed by surface of shield and jet guide member and are placed in communication through water intake holes formed by edges of shield of adjacent chambers and edges of jet guide members at place of their butt joining. Each chamber is provided with independent fish outlet made in form of vertical perforated pipe arranged coaxially to chamber and communicating by independent fish duct with fish outlet. Inlet part of water intake channel is made with tangential inlet, edge of left side of channel, shield and tangential inlet are arranged in one plane.

EFFECT: improved efficiency of washing of gauze shield and drawing off young fish and trash.

FIELD: hydraulic and hydropower engineering, particularly for building water-retaining structures to provide power supply to small settlements and farms.

SUBSTANCE: method involves assembling flexible apron assembly consisted of flexible floor apron and flexible downstream apron in watercourse; securing thereof to watercourse bottom by anchors. Water outlet assembly including hydroelectric generator arranged inside it is secured to floor apron and downstream apron by rigid ties. Connected to water outlet assembly by ties are water retaining shell and rope system secured to anchor poles located on watercourse bank.

EFFECT: reduced time of structure assembling and costs for electric power generation.